Masslessness
//ˈmæs.lɪs.nɪs// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 Absence of mass; the state or condition of being massless. uncountable
Etymology
From massless + -ness.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.